Dmitry.Kozhevnikov updated this revision to Diff 160837.
Dmitry.Kozhevnikov added a comment.
Add a unit test which explicitly builds preamble/AST
Repository:
rCTE Clang Tools Extra
https://reviews.llvm.org/D50455
Files:
clangd/ClangdUnit.cpp
clangd/Compiler.cpp
test/clangd/missing-includes.test
unittests/clangd/ClangdTests.cpp
Index: unittests/clangd/ClangdTests.cpp
===================================================================
--- unittests/clangd/ClangdTests.cpp
+++ unittests/clangd/ClangdTests.cpp
@@ -15,6 +15,8 @@
#include "TestFS.h"
#include "URI.h"
#include "clang/Config/config.h"
+#include "clang/Frontend/CompilerInvocation.h"
+#include "clang/Frontend/PCHContainerOperations.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/Support/Errc.h"
@@ -37,6 +39,7 @@
using ::testing::Eq;
using ::testing::Field;
using ::testing::Gt;
+using ::testing::HasSubstr;
using ::testing::IsEmpty;
using ::testing::Pair;
using ::testing::UnorderedElementsAre;
@@ -963,6 +966,53 @@
Field(&CodeCompletion::Name, "baz")));
}
+TEST(DiagnosticsTest, RecoverAfterFatalError) {
+ auto FooCpp = testPath("foo.cpp");
+
+ ParseInputs PI;
+ PI.CompileCommand.Directory = testRoot();
+ PI.CompileCommand.Filename = FooCpp;
+ PI.CompileCommand.CommandLine = {"clang", "-xc++", FooCpp};
+
+ llvm::StringMap<std::string> Files;
+ Files[FooCpp] = "";
+ PI.FS = buildTestFS(Files);
+
+ PI.Contents = R"cpp(
+ #include "preamble1"
+ #include "preamble2"
+ // end of the preamble
+ int x;
+ #include "main1"
+ #include "main2"
+ )cpp";
+
+ auto PreambleCI = buildCompilerInvocation(PI);
+
+ auto Preamble = buildPreamble(
+ FooCpp, *PreambleCI, /*OldPreamble=*/nullptr, tooling::CompileCommand(),
+ PI, std::make_shared<PCHContainerOperations>(), /*StoreInMemory=*/true,
+ /*PreambleCallback=*/nullptr);
+ ASSERT_TRUE(Preamble) << "Failed to build preamble";
+
+ ASSERT_EQ(Preamble->Diags.size(), 2u);
+ EXPECT_THAT(Preamble->Diags[0].Message, HasSubstr("preamble1"));
+ EXPECT_THAT(Preamble->Diags[1].Message, HasSubstr("preamble2"));
+
+ auto MainFileCI = buildCompilerInvocation(PI);
+ auto AST =
+ ParsedAST::build(std::move(MainFileCI), Preamble,
+ llvm::MemoryBuffer::getMemBufferCopy(PI.Contents),
+ std::make_shared<PCHContainerOperations>(), PI.FS);
+ ASSERT_TRUE(AST.hasValue()) << "Failed to build AST";
+
+ ASSERT_EQ(AST->getDiagnostics().size(), 4u);
+ EXPECT_THAT(AST->getDiagnostics()[0].Message, HasSubstr("preamble1"));
+ EXPECT_THAT(AST->getDiagnostics()[1].Message, HasSubstr("preamble2"));
+ EXPECT_THAT(AST->getDiagnostics()[2].Message, HasSubstr("main1"));
+ EXPECT_THAT(AST->getDiagnostics()[3].Message, HasSubstr("main2"));
+}
+
} // namespace
} // namespace clangd
} // namespace clang
Index: test/clangd/missing-includes.test
===================================================================
--- /dev/null
+++ test/clangd/missing-includes.test
@@ -0,0 +1,13 @@
+# RUN: clangd -lit-test < %s | FileCheck %s
+{"jsonrpc":"2.0","id":0,"method":"initialize","params":{"processId":123,"rootPath":"clangd","capabilities":{},"trace":"off"}}
+---
+{"jsonrpc":"2.0","method":"textDocument/didOpen","params":{"textDocument":{"uri":"test:///foo.c","languageId":"c","version":1,"text":"#include <a>\n#include <b>\nint x;\n#include <c>\n#include <d>\n"}}}
+# CHECK: "method": "textDocument/publishDiagnostics",
+# CHECK: "message": "'a' file not found",
+# CHECK: "message": "'b' file not found",
+# CHECK: "message": "'c' file not found",
+# CHECK: "message": "'d' file not found",
+---
+{"jsonrpc":"2.0","id":5,"method":"shutdown"}
+---
+{"jsonrpc":"2.0","method":"exit"}
Index: clangd/Compiler.cpp
===================================================================
--- clangd/Compiler.cpp
+++ clangd/Compiler.cpp
@@ -63,6 +63,7 @@
auto Clang = llvm::make_unique<CompilerInstance>(PCHs);
Clang->setInvocation(std::move(CI));
Clang->createDiagnostics(&DiagsClient, false);
+ Clang->getDiagnostics().setSuppressAfterFatalError(false);
if (auto VFSWithRemapping = createVFSFromCompilerInvocation(
Clang->getInvocation(), Clang->getDiagnostics(), VFS))
Index: clangd/ClangdUnit.cpp
===================================================================
--- clangd/ClangdUnit.cpp
+++ clangd/ClangdUnit.cpp
@@ -328,6 +328,8 @@
// to read back. We rely on dynamic index for the comments instead.
CI.getPreprocessorOpts().WriteCommentListToPCH = false;
+ PreambleDiagsEngine->setSuppressAfterFatalError(false);
+
CppFilePreambleCallbacks SerializedDeclsCollector(FileName, PreambleCallback);
if (Inputs.FS->setCurrentWorkingDirectory(Inputs.CompileCommand.Directory)) {
log("Couldn't set working directory when building the preamble.");
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